The universe began about 14 billion years ago. Or 13.7 billion
Answer:
smaller single celled organisms have a high surface area to volume ratio cause surface area to the volume ratio smaller as the cell grows larger. if a sell grow beyond the limit not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume
<span>When a gene changes within a population over time, it is referred to as evolution. This refers to a long but steady rate of mutations that occur in genes of organisms within the environment. A lot of factors affect a population's evolution (e.g. climate, reproduction, food source) and it is a determinant whether a species will survive for the next generations. </span>
Answer:
Organelle: a specialized subunit within a cell that has a specific function
Tissue: a cellular organizational level between cells and a complete organ + an ensemble of similar cells and their extracellular matrix from the same origin that together carry out a specific function
